Ball bearing swivel



FIG. 1 is a front perspective view of an 1, illustrating my new design;

FIG. 2 is a left side elevation thereof; the right side elevation being a mirror image thereof;

FIG. 3 is a front elevation view thereof; the rear view being a mirror image thereof;

FIG. 4 is a top view thereof; and,

FIG. 5 is a bottom view thereof. 

The ornamental design for a ball-bearing swivel, as shown and described. 